Two non-allelic male-sterile strains each controlled by a single recessive gene, ms1 (Brim and Young, 1971) and ms2 (Bernard and Cremeens, 1975),respectively, have been reported in soybeans. We now have evidence for a third completely male-sterile type controlled by a single recessive gene at adifferent locus from either ms1 or ms2 . As a result of the present study,this mutant was assigned a Genetic Type Collection T-number (T273) and the gene symbol ms3 by the Soybean Genetics Conmittee. This line is maintained as the heterozygote T273H .